Blog Section
Dear fellow engineers, the Metarchy community presents to you a modern course on Node.js that includes an in-depth exploration of all the capabilities and aspects of the platform. The main focus is on how to create reliable, high-load application servers and APIs without being tied to a specific framework or even a protocol, meaning to abstract business logic into a separate layer. The lectures come with many code examples demonstrating […]
In the animal kingdom, which includes humans, there are numerous methods of communicating with one another. This can be an energetic dance, such as that of the birds of paradise, indicating a male's readiness to reproduce; it can be vibrant coloring, like that of Amazon tree frogs, indicating their toxicity; or it can be scent, like that of dogs, marking boundaries […]
Recently, we already published a review of Plesk — a control panel for hosting and websites. You can find basic information about the console and the developer at the link, familiarize yourself with features for different user groups and the interface for website administrators. In this article, we will discuss the new version of the panel, which was released recently — Plesk Obsidian, for which you can obtain a license […]
Testing all the panels offered by the provider before starting work is challenging, so we have gathered the three most popular ones in a brief overview. Difficulties arise when a client transitions from OS administration to hosting-related tasks. They have to manage multiple sites with different CMSs and numerous user accounts. To reduce labor costs, it's worth installing a solution that allows configuration of relevant services through a convenient web interface […]
Elon Musk is one of the most prominent figures of the 21st century. An engineer, entrepreneur, and millionaire with simply unimaginable ideas. PayPal, Tesla, SpaceX — these are all his creations, and the businessman does not intend to stop with just a few projects that have become globally successful. He inspires millions of people with his example and proves that even one person can change the world […]
Millwrights are great people. I spent a lot of time with them in the shop while I was doing my internship and writing my dissertation. Later, I realized that millwrights are everywhere. Everything a millwright does at work is stand behind the milling machine and cut parts. They go for lunch, occasionally visit the restroom, and run to the smoking area every hour. That's it. A millwright always performs […]
Proton Technologies, which develops a secure email service and VPN, has announced the release of the source code for its ProtonVPN client applications for Windows, macOS, Android, and iOS (the console Linux client was originally open). The code is licensed under GPLv3. Simultaneously, reports on the independent audit of these applications have been published. No issues that could lead to VPN traffic decryption or privilege escalation were found during the audit […]
The main branch release of nginx 1.17.8 has been formed, within which the development of new capabilities continues (only serious bug fixes and vulnerabilities are addressed in the concurrently supported stable branch 1.16). Key changes: The grpc_pass directive now supports the use of a variable in the parameter that defines the address. If the address is specified as a domain name, it is searched among the described groups of servers […]
French mathematician Fabrice Bellard, who founded the QEMU and FFmpeg projects, has published an update for his compact embedded JavaScript engine, QuickJS. The engine supports the ES2019 specification and additional mathematical extensions such as BigInt and BigFloat types. In terms of performance, QuickJS significantly outperforms existing alternatives (35% better than XS, over twice as fast as DukTape, and three times faster than JerryScript).
This article has been translated specifically for students of the 'Linux Administrator' course. Here you will find answers to important questions about life, the universe, and everything in Linux with enhanced security. 'The important truth that things are not always what they seem is well known...' — Douglas Adams, The Hitchhiker's Guide to the Galaxy. Security. Reliability. Compliance. The Four Horsemen of the SysAdmin Apocalypse. In addition to...
Everyone talks about the processes of development and testing, staff training, and motivation enhancement, but these processes are insufficient when a minute of service downtime costs astronomical sums. What do you do when you're conducting financial transactions under a strict SLA? How can you improve the reliability and fault tolerance of your systems, excluding development and testing? The next HighLoad++ conference will take place on April 6 and 7, 2020.
Feral Interactive has released version 1.5 of the GameMode optimizer, implemented as a background process that dynamically changes various Linux system settings to achieve maximum performance for gaming applications. The project’s code is written in C and is distributed under the BSD license. A special library, libgamemode, is provided for games, allowing specific optimizations to be enabled during gameplay.